diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/soc/codecs/wm8995.c | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/soc/codecs/wm8995.c')
| -rw-r--r-- | kernel/sound/soc/codecs/wm8995.c | 2346 |
1 files changed, 2346 insertions, 0 deletions
diff --git a/kernel/sound/soc/codecs/wm8995.c b/kernel/sound/soc/codecs/wm8995.c new file mode 100644 index 000000000..66103c2b0 --- /dev/null +++ b/kernel/sound/soc/codecs/wm8995.c @@ -0,0 +1,2346 @@ +/* + * wm8995.c -- WM8995 ALSA SoC Audio driver + * + * Copyright 2010 Wolfson Microelectronics plc + * + * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> + * + * Based on wm8994.c and wm_hubs.c by Mark Brown + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/spi/spi.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include <sound/tlv.h> + +#include "wm8995.h" + +#define WM8995_NUM_SUPPLIES 8 +static const char *wm8995_supply_names[WM8995_NUM_SUPPLIES] = { + "DCVDD", + "DBVDD1", + "DBVDD2", + "DBVDD3", + "AVDD1", + "AVDD2", + "CPVDD", + "MICVDD" +}; + +static const struct reg_default wm8995_reg_defaults[] = { + { 0, 0x8995 }, + { 5, 0x0100 }, + { 16, 0x000b }, + { 17, 0x000b }, + { 24, 0x02c0 }, + { 25, 0x02c0 }, + { 26, 0x02c0 }, + { 27, 0x02c0 }, + { 28, 0x000f }, + { 32, 0x0005 }, + { 33, 0x0005 }, + { 40, 0x0003 }, + { 41, 0x0013 }, + { 48, 0x0004 }, + { 56, 0x09f8 }, + { 64, 0x1f25 }, + { 69, 0x0004 }, + { 82, 0xaaaa }, + { 84, 0x2a2a }, + { 146, 0x0060 }, + { 256, 0x0002 }, + { 257, 0x8004 }, + { 520, 0x0010 }, + { 528, 0x0083 }, + { 529, 0x0083 }, + { 548, 0x0c80 }, + { 580, 0x0c80 }, + { 768, 0x4050 }, + { 769, 0x4000 }, + { 771, 0x0040 }, + { 772, 0x0040 }, + { 773, 0x0040 }, + { 774, 0x0004 }, + { 775, 0x0100 }, + { 784, 0x4050 }, + { 785, 0x4000 }, + { 787, 0x0040 }, + { 788, 0x0040 }, + { 789, 0x0040 }, + { 1024, 0x00c0 }, + { 1025, 0x00c0 }, + { 1026, 0x00c0 }, + { 1027, 0x00c0 }, + { 1028, 0x00c0 }, + { 1029, 0x00c0 }, + { 1030, 0x00c0 }, + { 1031, 0x00c0 }, + { 1056, 0x0200 }, + { 1057, 0x0010 }, + { 1058, 0x0200 }, + { 1059, 0x0010 }, + { 1088, 0x0098 }, + { 1089, 0x0845 }, + { 1104, 0x0098 }, + { 1105, 0x0845 }, + { 1152, 0x6318 }, + { 1153, 0x6300 }, + { 1154, 0x0fca }, + { 1155, 0x0400 }, + { 1156, 0x00d8 }, + { 1157, 0x1eb5 }, + { 1158, 0xf145 }, + { 1159, 0x0b75 }, + { 1160, 0x01c5 }, + { 1161, 0x1c58 }, + { 1162, 0xf373 }, + { 1163, 0x0a54 }, + { 1164, 0x0558 }, + { 1165, 0x168e }, + { 1166, 0xf829 }, + { 1167, 0x07ad }, + { 1168, 0x1103 }, + { 1169, 0x0564 }, + { 1170, 0x0559 }, + { 1171, 0x4000 }, + { 1184, 0x6318 }, + { 1185, 0x6300 }, + { 1186, 0x0fca }, + { 1187, 0x0400 }, + { 1188, 0x00d8 }, + { 1189, 0x1eb5 }, + { 1190, 0xf145 }, + { 1191, 0x0b75 }, + { 1192, 0x01c5 }, + { 1193, 0x1c58 }, + { 1194, 0xf373 }, + { 1195, 0x0a54 }, + { 1196, 0x0558 }, + { 1197, 0x168e }, + { 1198, 0xf829 }, + { 1199, 0x07ad }, + { 1200, 0x1103 }, + { 1201, 0x0564 }, + { 1202, 0x0559 }, + { 1203, 0x4000 }, + { 1280, 0x00c0 }, + { 1281, 0x00c0 }, + { 1282, 0x00c0 }, + { 1283, 0x00c0 }, + { 1312, 0x0200 }, + { 1313, 0x0010 }, + { 1344, 0x0098 }, + { 1345, 0x0845 }, + { 1408, 0x6318 }, + { 1409, 0x6300 }, + { 1410, 0x0fca }, + { 1411, 0x0400 }, + { 1412, 0x00d8 }, + { 1413, 0x1eb5 }, + { 1414, 0xf145 }, + { 1415, 0x0b75 }, + { 1416, 0x01c5 }, + { 1417, 0x1c58 }, + { 1418, 0xf373 }, + { 1419, 0x0a54 }, + { 1420, 0x0558 }, + { 1421, 0x168e }, + { 1422, 0xf829 }, + { 1423, 0x07ad }, + { 1424, 0x1103 }, + { 1425, 0x0564 }, + { 1426, 0x0559 }, + { 1427, 0x4000 }, + { 1568, 0x0002 }, + { 1792, 0xa100 }, + { 1793, 0xa101 }, + { 1794, 0xa101 }, + { 1795, 0xa101 }, + { 1796, 0xa101 }, + { 1797, 0xa101 }, + { 1798, 0xa101 }, + { 1799, 0xa101 }, + { 1800, 0xa101 }, + { 1801, 0xa101 }, + { 1802, 0xa101 }, + { 1803, 0xa101 }, + { 1804, 0xa101 }, + { 1805, 0xa101 }, + { 1825, 0x0055 }, + { 1848, 0x3fff }, + { 1849, 0x1fff }, + { 2049, 0x0001 }, + { 2050, 0x0069 }, + { 2056, 0x0002 }, + { 2057, 0x0003 }, + { 2058, 0x0069 }, + { 12288, 0x0001 }, + { 12289, 0x0001 }, + { 12291, 0x0006 }, + { 12292, 0x0040 }, + { 12293, 0x0001 }, + { 12294, 0x000f }, + { 12295, 0x0006 }, + { 12296, 0x0001 }, + { 12297, 0x0003 }, + { 12298, 0x0104 }, + { 12300, 0x0060 }, + { 12301, 0x0011 }, + { 12302, 0x0401 }, + { 12304, 0x0050 }, + { 12305, 0x0003 }, + { 12306, 0x0100 }, + { 12308, 0x0051 }, + { 12309, 0x0003 }, + { 12310, 0x0104 }, + { 12311, 0x000a }, + { 12312, 0x0060 }, + { 12313, 0x003b }, + { 12314, 0x0502 }, + { 12315, 0x0100 }, + { 12316, 0x2fff }, + { 12320, 0x2fff }, + { 12324, 0x2fff }, + { 12328, 0x2fff }, + { 12332, 0x2fff }, + { 12336, 0x2fff }, + { 12340, 0x2fff }, + { 12344, 0x2fff }, + { 12348, 0x2fff }, + { 12352, 0x0001 }, + { 12353, 0x0001 }, + { 12355, 0x0006 }, + { 12356, 0x0040 }, + { 12357, 0x0001 }, + { 12358, 0x000f }, + { 12359, 0x0006 }, + { 12360, 0x0001 }, + { 12361, 0x0003 }, + { 12362, 0x0104 }, + { 12364, 0x0060 }, + { 12365, 0x0011 }, + { 12366, 0x0401 }, + { 12368, 0x0050 }, + { 12369, 0x0003 }, + { 12370, 0x0100 }, + { 12372, 0x0060 }, + { 12373, 0x003b }, + { 12374, 0x0502 }, + { 12375, 0x0100 }, + { 12376, 0x2fff }, + { 12380, 0x2fff }, + { 12384, 0x2fff }, + { 12388, 0x2fff }, + { 12392, 0x2fff }, + { 12396, 0x2fff }, + { 12400, 0x2fff }, + { 12404, 0x2fff }, + { 12408, 0x2fff }, + { 12412, 0x2fff }, + { 12416, 0x0001 }, + { 12417, 0x0001 }, + { 12419, 0x0006 }, + { 12420, 0x0040 }, + { 12421, 0x0001 }, + { 12422, 0x000f }, + { 12423, 0x0006 }, + { 12424, 0x0001 }, + { 12425, 0x0003 }, + { 12426, 0x0106 }, + { 12428, 0x0061 }, + { 12429, 0x0011 }, + { 12430, 0x0401 }, + { 12432, 0x0050 }, + { 12433, 0x0003 }, + { 12434, 0x0102 }, + { 12436, 0x0051 }, + { 12437, 0x0003 }, + { 12438, 0x0106 }, + { 12439, 0x000a }, + { 12440, 0x0061 }, + { 12441, 0x003b }, + { 12442, 0x0502 }, + { 12443, 0x0100 }, + { 12444, 0x2fff }, + { 12448, 0x2fff }, + { 12452, 0x2fff }, + { 12456, 0x2fff }, + { 12460, 0x2fff }, + { 12464, 0x2fff }, + { 12468, 0x2fff }, + { 12472, 0x2fff }, + { 12476, 0x2fff }, + { 12480, 0x0001 }, + { 12481, 0x0001 }, + { 12483, 0x0006 }, + { 12484, 0x0040 }, + { 12485, 0x0001 }, + { 12486, 0x000f }, + { 12487, 0x0006 }, + { 12488, 0x0001 }, + { 12489, 0x0003 }, + { 12490, 0x0106 }, + { 12492, 0x0061 }, + { 12493, 0x0011 }, + { 12494, 0x0401 }, + { 12496, 0x0050 }, + { 12497, 0x0003 }, + { 12498, 0x0102 }, + { 12500, 0x0061 }, + { 12501, 0x003b }, + { 12502, 0x0502 }, + { 12503, 0x0100 }, + { 12504, 0x2fff }, + { 12508, 0x2fff }, + { 12512, 0x2fff }, + { 12516, 0x2fff }, + { 12520, 0x2fff }, + { 12524, 0x2fff }, + { 12528, 0x2fff }, + { 12532, 0x2fff }, + { 12536, 0x2fff }, + { 12540, 0x2fff }, + { 12544, 0x0060 }, + { 12546, 0x0601 }, + { 12548, 0x0050 }, + { 12550, 0x0100 }, + { 12552, 0x0001 }, + { 12554, 0x0104 }, + { 12555, 0x0100 }, + { 12556, 0x2fff }, + { 12560, 0x2fff }, + { 12564, 0x2fff }, + { 12568, 0x2fff }, + { 12572, 0x2fff }, + { 12576, 0x2fff }, + { 12580, 0x2fff }, + { 12584, 0x2fff }, + { 12588, 0x2fff }, + { 12592, 0x2fff }, + { 12596, 0x2fff }, + { 12600, 0x2fff }, + { 12604, 0x2fff }, + { 12608, 0x0061 }, + { 12610, 0x0601 }, + { 12612, 0x0050 }, + { 12614, 0x0102 }, + { 12616, 0x0001 }, + { 12618, 0x0106 }, + { 12619, 0x0100 }, + { 12620, 0x2fff }, + { 12624, 0x2fff }, + { 12628, 0x2fff }, + { 12632, 0x2fff }, + { 12636, 0x2fff }, + { 12640, 0x2fff }, + { 12644, 0x2fff }, + { 12648, 0x2fff }, + { 12652, 0x2fff }, + { 12656, 0x2fff }, + { 12660, 0x2fff }, + { 12664, 0x2fff }, + { 12668, 0x2fff }, + { 12672, 0x0060 }, + { 12674, 0x0601 }, + { 12676, 0x0061 }, + { 12678, 0x0601 }, + { 12680, 0x0050 }, + { 12682, 0x0300 }, + { 12684, 0x0001 }, + { 12686, 0x0304 }, + { 12688, 0x0040 }, + { 12690, 0x000f }, + { 12692, 0x0001 }, + { 12695, 0x0100 }, +}; + +struct fll_config { + int src; + int in; + int out; +}; + +struct wm8995_priv { + struct regmap *regmap; + int sysclk[2]; + int mclk[2]; + int aifclk[2]; + struct fll_config fll[2], fll_suspend[2]; + struct regulator_bulk_data supplies[WM8995_NUM_SUPPLIES]; + struct notifier_block disable_nb[WM8995_NUM_SUPPLIES]; + struct snd_soc_codec *codec; +}; + +/* + * We can't use the same notifier block for more than one supply and + * there's no way I can see to get from a callback to the caller + * except container_of(). + */ +#define WM8995_REGULATOR_EVENT(n) \ +static int wm8995_regulator_event_##n(struct notifier_block *nb, \ + unsigned long event, void *data) \ +{ \ + struct wm8995_priv *wm8995 = container_of(nb, struct wm8995_priv, \ + disable_nb[n]); \ + if (event & REGULATOR_EVENT_DISABLE) { \ + regcache_mark_dirty(wm8995->regmap); \ + } \ + return 0; \ +} + +WM8995_REGULATOR_EVENT(0) +WM8995_REGULATOR_EVENT(1) +WM8995_REGULATOR_EVENT(2) +WM8995_REGULATOR_EVENT(3) +WM8995_REGULATOR_EVENT(4) +WM8995_REGULATOR_EVENT(5) +WM8995_REGULATOR_EVENT(6) +WM8995_REGULATOR_EVENT(7) + +static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); +static const DECLARE_TLV_DB_SCALE(in1lr_pga_tlv, -1650, 150, 0); +static const DECLARE_TLV_DB_SCALE(in1l_boost_tlv, 0, 600, 0); +static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0); + +static const char *in1l_text[] = { + "Differential", "Single-ended IN1LN", "Single-ended IN1LP" +}; + +static SOC_ENUM_SINGLE_DECL(in1l_enum, WM8995_LEFT_LINE_INPUT_CONTROL, + 2, in1l_text); + +static const char *in1r_text[] = { + "Differential", "Single-ended IN1RN", "Single-ended IN1RP" +}; + +static SOC_ENUM_SINGLE_DECL(in1r_enum, WM8995_LEFT_LINE_INPUT_CONTROL, + 0, in1r_text); + +static const char *dmic_src_text[] = { + "DMICDAT1", "DMICDAT2", "DMICDAT3" +}; + +static SOC_ENUM_SINGLE_DECL(dmic_src1_enum, WM8995_POWER_MANAGEMENT_5, + 8, dmic_src_text); +static SOC_ENUM_SINGLE_DECL(dmic_src2_enum, WM8995_POWER_MANAGEMENT_5, + 6, dmic_src_text); + +static const struct snd_kcontrol_new wm8995_snd_controls[] = { + SOC_DOUBLE_R_TLV("DAC1 Volume", WM8995_DAC1_LEFT_VOLUME, + WM8995_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv), + SOC_DOUBLE_R("DAC1 Switch", WM8995_DAC1_LEFT_VOLUME, + WM8995_DAC1_RIGHT_VOLUME, 9, 1, 1), + + SOC_DOUBLE_R_TLV("DAC2 Volume", WM8995_DAC2_LEFT_VOLUME, + WM8995_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv), + SOC_DOUBLE_R("DAC2 Switch", WM8995_DAC2_LEFT_VOLUME, + WM8995_DAC2_RIGHT_VOLUME, 9, 1, 1), + + SOC_DOUBLE_R_TLV("AIF1DAC1 Volume", WM8995_AIF1_DAC1_LEFT_VOLUME, + WM8995_AIF1_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv), + SOC_DOUBLE_R_TLV("AIF1DAC2 Volume", WM8995_AIF1_DAC2_LEFT_VOLUME, + WM8995_AIF1_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv), + SOC_DOUBLE_R_TLV("AIF2DAC Volume", WM8995_AIF2_DAC_LEFT_VOLUME, + WM8995_AIF2_DAC_RIGHT_VOLUME, 0, 96, 0, digital_tlv), + + SOC_DOUBLE_R_TLV("IN1LR Volume", WM8995_LEFT_LINE_INPUT_1_VOLUME, + WM8995_RIGHT_LINE_INPUT_1_VOLUME, 0, 31, 0, in1lr_pga_tlv), + + SOC_SINGLE_TLV("IN1L Boost", WM8995_LEFT_LINE_INPUT_CONTROL, + 4, 3, 0, in1l_boost_tlv), + + SOC_ENUM("IN1L Mode", in1l_enum), + SOC_ENUM("IN1R Mode", in1r_enum), + + SOC_ENUM("DMIC1 SRC", dmic_src1_enum), + SOC_ENUM("DMIC2 SRC", dmic_src2_enum), + + SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8995_DAC1_MIXER_VOLUMES, 0, 5, + 24, 0, sidetone_tlv), + SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8995_DAC2_MIXER_VOLUMES, 0, 5, + 24, 0, sidetone_tlv), + + SOC_DOUBLE_R_TLV("AIF1ADC1 Volume", WM8995_AIF1_ADC1_LEFT_VOLUME, + WM8995_AIF1_ADC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv), + SOC_DOUBLE_R_TLV("AIF1ADC2 Volume", WM8995_AIF1_ADC2_LEFT_VOLUME, + WM8995_AIF1_ADC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv), + SOC_DOUBLE_R_TLV("AIF2ADC Volume", WM8995_AIF2_ADC_LEFT_VOLUME, + WM8995_AIF2_ADC_RIGHT_VOLUME, 0, 96, 0, digital_tlv) +}; + +static void wm8995_update_class_w(struct snd_soc_codec *codec) +{ + int enable = 1; + int source = 0; /* GCC flow analysis can't track enable */ + int reg, reg_r; + + /* We also need the same setting for L/R and only one path */ + reg = snd_soc_read(codec, WM8995_DAC1_LEFT_MIXER_ROUTING); + switch (reg) { + case WM8995_AIF2DACL_TO_DAC1L: + dev_dbg(codec->dev, "Class W source AIF2DAC\n"); + source = 2 << WM8995_CP_DYN_SRC_SEL_SHIFT; + break; + case WM8995_AIF1DAC2L_TO_DAC1L: + dev_dbg(codec->dev, "Class W source AIF1DAC2\n"); + source = 1 << WM8995_CP_DYN_SRC_SEL_SHIFT; + break; + case WM8995_AIF1DAC1L_TO_DAC1L: + dev_dbg(codec->dev, "Class W source AIF1DAC1\n"); + source = 0 << WM8995_CP_DYN_SRC_SEL_SHIFT; + break; + default: + dev_dbg(codec->dev, "DAC mixer setting: %x\n", reg); + enable = 0; + break; + } + + reg_r = snd_soc_read(codec, WM8995_DAC1_RIGHT_MIXER_ROUTING); + if (reg_r != reg) { + dev_dbg(codec->dev, "Left and right DAC mixers different\n"); + enable = 0; + } + + if (enable) { + dev_dbg(codec->dev, "Class W enabled\n"); + snd_soc_update_bits(codec, WM8995_CLASS_W_1, + WM8995_CP_DYN_PWR_MASK | + WM8995_CP_DYN_SRC_SEL_MASK, + source | WM8995_CP_DYN_PWR); + } else { + dev_dbg(codec->dev, "Class W disabled\n"); + snd_soc_update_bits(codec, WM8995_CLASS_W_1, + WM8995_CP_DYN_PWR_MASK, 0); + } +} + +static int check_clk_sys(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm); + unsigned int reg; + const char *clk; + + reg = snd_soc_read(codec, WM8995_CLOCKING_1); + /* Check what we're currently using for CLK_SYS */ + if (reg & WM8995_SYSCLK_SRC) + clk = "AIF2CLK"; + else + clk = "AIF1CLK"; + return !strcmp(source->name, clk); +} + +static int wm8995_put_class_w(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol); + int ret; + + ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol); + wm8995_update_class_w(codec); + return ret; +} + +static int hp_supply_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + /* Enable the headphone amp */ + snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, + WM8995_HPOUT1L_ENA_MASK | + WM8995_HPOUT1R_ENA_MASK, + WM8995_HPOUT1L_ENA | + WM8995_HPOUT1R_ENA); + + /* Enable the second stage */ + snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1, + WM8995_HPOUT1L_DLY_MASK | + WM8995_HPOUT1R_DLY_MASK, + WM8995_HPOUT1L_DLY | + WM8995_HPOUT1R_DLY); + break; + case SND_SOC_DAPM_PRE_PMD: + snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1, + WM8995_CP_ENA_MASK, 0); + break; + } + + return 0; +} + +static void dc_servo_cmd(struct snd_soc_codec *codec, + unsigned int reg, unsigned int val, unsigned int mask) +{ + int timeout = 10; + + dev_dbg(codec->dev, "%s: reg = %#x, val = %#x, mask = %#x\n", + __func__, reg, val, mask); + + snd_soc_write(codec, reg, val); + while (timeout--) { + msleep(10); + val = snd_soc_read(codec, WM8995_DC_SERVO_READBACK_0); + if ((val & mask) == mask) + return; + } + + dev_err(codec->dev, "Timed out waiting for DC Servo\n"); +} + +static int hp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + unsigned int reg; + + reg = snd_soc_read(codec, WM8995_ANALOGUE_HP_1); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1, + WM8995_CP_ENA_MASK, WM8995_CP_ENA); + + msleep(5); + + snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, + WM8995_HPOUT1L_ENA_MASK | + WM8995_HPOUT1R_ENA_MASK, + WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA); + + udelay(20); + + reg |= WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY; + snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg); + + snd_soc_write(codec, WM8995_DC_SERVO_1, WM8995_DCS_ENA_CHAN_0 | + WM8995_DCS_ENA_CHAN_1); + + dc_servo_cmd(codec, WM8995_DC_SERVO_2, + WM8995_DCS_TRIG_STARTUP_0 | + WM8995_DCS_TRIG_STARTUP_1, + WM8995_DCS_TRIG_DAC_WR_0 | + WM8995_DCS_TRIG_DAC_WR_1); + + reg |= WM8995_HPOUT1R_OUTP | WM8995_HPOUT1R_RMV_SHORT | + WM8995_HPOUT1L_OUTP | WM8995_HPOUT1L_RMV_SHORT; + snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg); + + break; + case SND_SOC_DAPM_PRE_PMD: + snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1, + WM8995_HPOUT1L_OUTP_MASK | + WM8995_HPOUT1R_OUTP_MASK | + WM8995_HPOUT1L_RMV_SHORT_MASK | + WM8995_HPOUT1R_RMV_SHORT_MASK, 0); + + snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1, + WM8995_HPOUT1L_DLY_MASK | + WM8995_HPOUT1R_DLY_MASK, 0); + + snd_soc_write(codec, WM8995_DC_SERVO_1, 0); + + snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, + WM8995_HPOUT1L_ENA_MASK | + WM8995_HPOUT1R_ENA_MASK, + 0); + break; + } + + return 0; +} + +static int configure_aif_clock(struct snd_soc_codec *codec, int aif) +{ + struct wm8995_priv *wm8995; + int rate; + int reg1 = 0; + int offset; + + wm8995 = snd_soc_codec_get_drvdata(codec); + + if (aif) + offset = 4; + else + offset = 0; + + switch (wm8995->sysclk[aif]) { + case WM8995_SYSCLK_MCLK1: + rate = wm8995->mclk[0]; + break; + case WM8995_SYSCLK_MCLK2: + reg1 |= 0x8; + rate = wm8995->mclk[1]; + break; + case WM8995_SYSCLK_FLL1: + reg1 |= 0x10; + rate = wm8995->fll[0].out; + break; + case WM8995_SYSCLK_FLL2: + reg1 |= 0x18; + rate = wm8995->fll[1].out; + break; + default: + return -EINVAL; + } + + if (rate >= 13500000) { + rate /= 2; + reg1 |= WM8995_AIF1CLK_DIV; + + dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n", + aif + 1, rate); + } + + wm8995->aifclk[aif] = rate; + + snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1 + offset, + WM8995_AIF1CLK_SRC_MASK | WM8995_AIF1CLK_DIV_MASK, + reg1); + return 0; +} + +static int configure_clock(struct snd_soc_codec *codec) +{ + struct wm8995_priv *wm8995; + int change, new; + + wm8995 = snd_soc_codec_get_drvdata(codec); + + /* Bring up the AIF clocks first */ + configure_aif_clock(codec, 0); + configure_aif_clock(codec, 1); + + /* + * Then switch CLK_SYS over to the higher of them; a change + * can only happen as a result of a clocking change which can + * only be made outside of DAPM so we can safely redo the + * clocking. + */ + + /* If they're equal it doesn't matter which is used */ + if (wm8995->aifclk[0] == wm8995->aifclk[1]) + return 0; + + if (wm8995->aifclk[0] < wm8995->aifclk[1]) + new = WM8995_SYSCLK_SRC; + else + new = 0; + + change = snd_soc_update_bits(codec, WM8995_CLOCKING_1, + WM8995_SYSCLK_SRC_MASK, new); + if (!change) + return 0; + + snd_soc_dapm_sync(&codec->dapm); + + return 0; +} + +static int clk_sys_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return configure_clock(codec); + + case SND_SOC_DAPM_POST_PMD: + configure_clock(codec); + break; + } + + return 0; +} + +static const char *sidetone_text[] = { + "ADC/DMIC1", "DMIC2", +}; + +static SOC_ENUM_SINGLE_DECL(sidetone1_enum, WM8995_SIDETONE, 0, sidetone_text); + +static const struct snd_kcontrol_new sidetone1_mux = + SOC_DAPM_ENUM("Left Sidetone Mux", sidetone1_enum); + +static SOC_ENUM_SINGLE_DECL(sidetone2_enum, WM8995_SIDETONE, 1, sidetone_text); + +static const struct snd_kcontrol_new sidetone2_mux = + SOC_DAPM_ENUM("Right Sidetone Mux", sidetone2_enum); + +static const struct snd_kcontrol_new aif1adc1l_mix[] = { + SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING, + 1, 1, 0), + SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new aif1adc1r_mix[] = { + SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING, + 1, 1, 0), + SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new aif1adc2l_mix[] = { + SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING, + 1, 1, 0), + SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new aif1adc2r_mix[] = { + SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING, + 1, 1, 0), + SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new dac1l_mix[] = { + WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, + 5, 1, 0), + WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, + 4, 1, 0), + WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, + 2, 1, 0), + WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, + 1, 1, 0), + WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new dac1r_mix[] = { + WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, + 5, 1, 0), + WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, + 4, 1, 0), + WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, + 2, 1, 0), + WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, + 1, 1, 0), + WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new aif2dac2l_mix[] = { + SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, + 5, 1, 0), + SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, + 4, 1, 0), + SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, + 2, 1, 0), + SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, + 1, 1, 0), + SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new aif2dac2r_mix[] = { + SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, + 5, 1, 0), + SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, + 4, 1, 0), + SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, + 2, 1, 0), + SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, + 1, 1, 0), + SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING, + 0, 1, 0), +}; + +static const struct snd_kcontrol_new in1l_pga = + SOC_DAPM_SINGLE("IN1L Switch", WM8995_POWER_MANAGEMENT_2, 5, 1, 0); + +static const struct snd_kcontrol_new in1r_pga = + SOC_DAPM_SINGLE("IN1R Switch", WM8995_POWER_MANAGEMENT_2, 4, 1, 0); + +static const char *adc_mux_text[] = { + "ADC", + "DMIC", +}; + +static SOC_ENUM_SINGLE_VIRT_DECL(adc_enum, adc_mux_text); + +static const struct snd_kcontrol_new adcl_mux = + SOC_DAPM_ENUM("ADCL Mux", adc_enum); + +static const struct snd_kcontrol_new adcr_mux = + SOC_DAPM_ENUM("ADCR Mux", adc_enum); + +static const char *spk_src_text[] = { + "DAC1L", "DAC1R", "DAC2L", "DAC2R" +}; + +static SOC_ENUM_SINGLE_DECL(spk1l_src_enum, WM8995_LEFT_PDM_SPEAKER_1, + 0, spk_src_text); +static SOC_ENUM_SINGLE_DECL(spk1r_src_enum, WM8995_RIGHT_PDM_SPEAKER_1, + 0, spk_src_text); +static SOC_ENUM_SINGLE_DECL(spk2l_src_enum, WM8995_LEFT_PDM_SPEAKER_2, + 0, spk_src_text); +static SOC_ENUM_SINGLE_DECL(spk2r_src_enum, WM8995_RIGHT_PDM_SPEAKER_2, + 0, spk_src_text); + +static const struct snd_kcontrol_new spk1l_mux = + SOC_DAPM_ENUM("SPK1L SRC", spk1l_src_enum); +static const struct snd_kcontrol_new spk1r_mux = + SOC_DAPM_ENUM("SPK1R SRC", spk1r_src_enum); +static const struct snd_kcontrol_new spk2l_mux = + SOC_DAPM_ENUM("SPK2L SRC", spk2l_src_enum); +static const struct snd_kcontrol_new spk2r_mux = + SOC_DAPM_ENUM("SPK2R SRC", spk2r_src_enum); + +static const struct snd_soc_dapm_widget wm8995_dapm_widgets[] = { + SND_SOC_DAPM_INPUT("DMIC1DAT"), + SND_SOC_DAPM_INPUT("DMIC2DAT"), + + SND_SOC_DAPM_INPUT("IN1L"), + SND_SOC_DAPM_INPUT("IN1R"), + + SND_SOC_DAPM_MIXER("IN1L PGA", SND_SOC_NOPM, 0, 0, + &in1l_pga, 1), + SND_SOC_DAPM_MIXER("IN1R PGA", SND_SOC_NOPM, 0, 0, + &in1r_pga, 1), + + SND_SOC_DAPM_SUPPLY("MICBIAS1", WM8995_POWER_MANAGEMENT_1, 8, 0, + NULL, 0), + SND_SOC_DAPM_SUPPLY("MICBIAS2", WM8995_POWER_MANAGEMENT_1, 9, 0, + NULL, 0), + + SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8995_AIF1_CLOCKING_1, 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8995_AIF2_CLOCKING_1, 0, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8995_CLOCKING_1, 3, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8995_CLOCKING_1, 2, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("SYSDSPCLK", WM8995_CLOCKING_1, 1, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + + SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", 0, + WM8995_POWER_MANAGEMENT_3, 9, 0), + SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", 0, + WM8995_POWER_MANAGEMENT_3, 8, 0), + SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture", + 0, WM8995_POWER_MANAGEMENT_3, 11, 0), + SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture", + 0, WM8995_POWER_MANAGEMENT_3, 10, 0), + + SND_SOC_DAPM_MUX("ADCL Mux", SND_SOC_NOPM, 1, 0, &adcl_mux), + SND_SOC_DAPM_MUX("ADCR Mux", SND_SOC_NOPM, 0, 0, &adcr_mux), + + SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8995_POWER_MANAGEMENT_3, 5, 0), + SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8995_POWER_MANAGEMENT_3, 4, 0), + SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8995_POWER_MANAGEMENT_3, 3, 0), + SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8995_POWER_MANAGEMENT_3, 2, 0), + + SND_SOC_DAPM_ADC("ADCL", NULL, WM8995_POWER_MANAGEMENT_3, 1, 0), + SND_SOC_DAPM_ADC("ADCR", NULL, WM8995_POWER_MANAGEMENT_3, 0, 0), + + SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0, + aif1adc1l_mix, ARRAY_SIZE(aif1adc1l_mix)), + SND_SOC_DAPM_MIXER("AIF1ADC1R Mixer", SND_SOC_NOPM, 0, 0, + aif1adc1r_mix, ARRAY_SIZE(aif1adc1r_mix)), + SND_SOC_DAPM_MIXER("AIF1ADC2L Mixer", SND_SOC_NOPM, 0, 0, + aif1adc2l_mix, ARRAY_SIZE(aif1adc2l_mix)), + SND_SOC_DAPM_MIXER("AIF1ADC2R Mixer", SND_SOC_NOPM, 0, 0, + aif1adc2r_mix, ARRAY_SIZE(aif1adc2r_mix)), + + SND_SOC_DAPM_AIF_IN("AIF1DAC1L", NULL, 0, WM8995_POWER_MANAGEMENT_4, + 9, 0), + SND_SOC_DAPM_AIF_IN("AIF1DAC1R", NULL, 0, WM8995_POWER_MANAGEMENT_4, + 8, 0), + SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM, + 0, 0), + + SND_SOC_DAPM_AIF_IN("AIF1DAC2L", NULL, 0, WM8995_POWER_MANAGEMENT_4, + 11, 0), + SND_SOC_DAPM_AIF_IN("AIF1DAC2R", NULL, 0, WM8995_POWER_MANAGEMENT_4, + 10, 0), + + SND_SOC_DAPM_MIXER("AIF2DAC2L Mixer", SND_SOC_NOPM, 0, 0, + aif2dac2l_mix, ARRAY_SIZE(aif2dac2l_mix)), + SND_SOC_DAPM_MIXER("AIF2DAC2R Mixer", SND_SOC_NOPM, 0, 0, + aif2dac2r_mix, ARRAY_SIZE(aif2dac2r_mix)), + + SND_SOC_DAPM_DAC("DAC2L", NULL, WM8995_POWER_MANAGEMENT_4, 3, 0), + SND_SOC_DAPM_DAC("DAC2R", NULL, WM8995_POWER_MANAGEMENT_4, 2, 0), + SND_SOC_DAPM_DAC("DAC1L", NULL, WM8995_POWER_MANAGEMENT_4, 1, 0), + SND_SOC_DAPM_DAC("DAC1R", NULL, WM8995_POWER_MANAGEMENT_4, 0, 0), + + SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0, dac1l_mix, + ARRAY_SIZE(dac1l_mix)), + SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix, + ARRAY_SIZE(dac1r_mix)), + + SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &sidetone1_mux), + SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &sidetone2_mux), + + SND_SOC_DAPM_PGA_E("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0, + hp_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + + SND_SOC_DAPM_SUPPLY("Headphone Supply", SND_SOC_NOPM, 0, 0, + hp_supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), + + SND_SOC_DAPM_MUX("SPK1L Driver", WM8995_LEFT_PDM_SPEAKER_1, + 4, 0, &spk1l_mux), + SND_SOC_DAPM_MUX("SPK1R Driver", WM8995_RIGHT_PDM_SPEAKER_1, + 4, 0, &spk1r_mux), + SND_SOC_DAPM_MUX("SPK2L Driver", WM8995_LEFT_PDM_SPEAKER_2, + 4, 0, &spk2l_mux), + SND_SOC_DAPM_MUX("SPK2R Driver", WM8995_RIGHT_PDM_SPEAKER_2, + 4, 0, &spk2r_mux), + + SND_SOC_DAPM_SUPPLY("LDO2", WM8995_POWER_MANAGEMENT_2, 1, 0, NULL, 0), + + SND_SOC_DAPM_OUTPUT("HP1L"), + SND_SOC_DAPM_OUTPUT("HP1R"), + SND_SOC_DAPM_OUTPUT("SPK1L"), + SND_SOC_DAPM_OUTPUT("SPK1R"), + SND_SOC_DAPM_OUTPUT("SPK2L"), + SND_SOC_DAPM_OUTPUT("SPK2R") +}; + +static const struct snd_soc_dapm_route wm8995_intercon[] = { + { "CLK_SYS", NULL, "AIF1CLK", check_clk_sys }, + { "CLK_SYS", NULL, "AIF2CLK", check_clk_sys }, + + { "DSP1CLK", NULL, "CLK_SYS" }, + { "DSP2CLK", NULL, "CLK_SYS" }, + { "SYSDSPCLK", NULL, "CLK_SYS" }, + + { "AIF1ADC1L", NULL, "AIF1CLK" }, + { "AIF1ADC1L", NULL, "DSP1CLK" }, + { "AIF1ADC1R", NULL, "AIF1CLK" }, + { "AIF1ADC1R", NULL, "DSP1CLK" }, + { "AIF1ADC1R", NULL, "SYSDSPCLK" }, + + { "AIF1ADC2L", NULL, "AIF1CLK" }, + { "AIF1ADC2L", NULL, "DSP1CLK" }, + { "AIF1ADC2R", NULL, "AIF1CLK" }, + { "AIF1ADC2R", NULL, "DSP1CLK" }, + { "AIF1ADC2R", NULL, "SYSDSPCLK" }, + + { "DMIC1L", NULL, "DMIC1DAT" }, + { "DMIC1L", NULL, "CLK_SYS" }, + { "DMIC1R", NULL, "DMIC1DAT" }, + { "DMIC1R", NULL, "CLK_SYS" }, + { "DMIC2L", NULL, "DMIC2DAT" }, + { "DMIC2L", NULL, "CLK_SYS" }, + { "DMIC2R", NULL, "DMIC2DAT" }, + { "DMIC2R", NULL, "CLK_SYS" }, + + { "ADCL", NULL, "AIF1CLK" }, + { "ADCL", NULL, "DSP1CLK" }, + { "ADCL", NULL, "SYSDSPCLK" }, + + { "ADCR", NULL, "AIF1CLK" }, + { "ADCR", NULL, "DSP1CLK" }, + { "ADCR", NULL, "SYSDSPCLK" }, + + { "IN1L PGA", "IN1L Switch", "IN1L" }, + { "IN1R PGA", "IN1R Switch", "IN1R" }, + { "IN1L PGA", NULL, "LDO2" }, + { "IN1R PGA", NULL, "LDO2" }, + + { "ADCL", NULL, "IN1L PGA" }, + { "ADCR", NULL, "IN1R PGA" }, + + { "ADCL Mux", "ADC", "ADCL" }, + { "ADCL Mux", "DMIC", "DMIC1L" }, + { "ADCR Mux", "ADC", "ADCR" }, + { "ADCR Mux", "DMIC", "DMIC1R" }, + + /* AIF1 outputs */ + { "AIF1ADC1L", NULL, "AIF1ADC1L Mixer" }, + { "AIF1ADC1L Mixer", "ADC/DMIC Switch", "ADCL Mux" }, + + { "AIF1ADC1R", NULL, "AIF1ADC1R Mixer" }, + { "AIF1ADC1R Mixer", "ADC/DMIC Switch", "ADCR Mux" }, + + { "AIF1ADC2L", NULL, "AIF1ADC2L Mixer" }, + { "AIF1ADC2L Mixer", "DMIC Switch", "DMIC2L" }, + + { "AIF1ADC2R", NULL, "AIF1ADC2R Mixer" }, + { "AIF1ADC2R Mixer", "DMIC Switch", "DMIC2R" }, + + /* Sidetone */ + { "Left Sidetone", "ADC/DMIC1", "AIF1ADC1L" }, + { "Left Sidetone", "DMIC2", "AIF1ADC2L" }, + { "Right Sidetone", "ADC/DMIC1", "AIF1ADC1R" }, + { "Right Sidetone", "DMIC2", "AIF1ADC2R" }, + + { "AIF1DAC1L", NULL, "AIF1CLK" }, + { "AIF1DAC1L", NULL, "DSP1CLK" }, + { "AIF1DAC1R", NULL, "AIF1CLK" }, + { "AIF1DAC1R", NULL, "DSP1CLK" }, + { "AIF1DAC1R", NULL, "SYSDSPCLK" }, + + { "AIF1DAC2L", NULL, "AIF1CLK" }, + { "AIF1DAC2L", NULL, "DSP1CLK" }, + { "AIF1DAC2R", NULL, "AIF1CLK" }, + { "AIF1DAC2R", NULL, "DSP1CLK" }, + { "AIF1DAC2R", NULL, "SYSDSPCLK" }, + + { "DAC1L", NULL, "AIF1CLK" }, + { "DAC1L", NULL, "DSP1CLK" }, + { "DAC1L", NULL, "SYSDSPCLK" }, + + { "DAC1R", NULL, "AIF1CLK" }, + { "DAC1R", NULL, "DSP1CLK" }, + { "DAC1R", NULL, "SYSDSPCLK" }, + + { "AIF1DAC1L", NULL, "AIF1DACDAT" }, + { "AIF1DAC1R", NULL, "AIF1DACDAT" }, + { "AIF1DAC2L", NULL, "AIF1DACDAT" }, + { "AIF1DAC2R", NULL, "AIF1DACDAT" }, + + /* DAC1 inputs */ + { "DAC1L", NULL, "DAC1L Mixer" }, + { "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" }, + { "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" }, + { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" }, + { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" }, + + { "DAC1R", NULL, "DAC1R Mixer" }, + { "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" }, + { "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" }, + { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" }, + { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" }, + + /* DAC2/AIF2 outputs */ + { "DAC2L", NULL, "AIF2DAC2L Mixer" }, + { "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" }, + { "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" }, + + { "DAC2R", NULL, "AIF2DAC2R Mixer" }, + { "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" }, + { "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" }, + + /* Output stages */ + { "Headphone PGA", NULL, "DAC1L" }, + { "Headphone PGA", NULL, "DAC1R" }, + + { "Headphone PGA", NULL, "DAC2L" }, + { "Headphone PGA", NULL, "DAC2R" }, + + { "Headphone PGA", NULL, "Headphone Supply" }, + { "Headphone PGA", NULL, "CLK_SYS" }, + { "Headphone PGA", NULL, "LDO2" }, + + { "HP1L", NULL, "Headphone PGA" }, + { "HP1R", NULL, "Headphone PGA" }, + + { "SPK1L Driver", "DAC1L", "DAC1L" }, + { "SPK1L Driver", "DAC1R", "DAC1R" }, + { "SPK1L Driver", "DAC2L", "DAC2L" }, + { "SPK1L Driver", "DAC2R", "DAC2R" }, + { "SPK1L Driver", NULL, "CLK_SYS" }, + + { "SPK1R Driver", "DAC1L", "DAC1L" }, + { "SPK1R Driver", "DAC1R", "DAC1R" }, + { "SPK1R Driver", "DAC2L", "DAC2L" }, + { "SPK1R Driver", "DAC2R", "DAC2R" }, + { "SPK1R Driver", NULL, "CLK_SYS" }, + + { "SPK2L Driver", "DAC1L", "DAC1L" }, + { "SPK2L Driver", "DAC1R", "DAC1R" }, + { "SPK2L Driver", "DAC2L", "DAC2L" }, + { "SPK2L Driver", "DAC2R", "DAC2R" }, + { "SPK2L Driver", NULL, "CLK_SYS" }, + + { "SPK2R Driver", "DAC1L", "DAC1L" }, + { "SPK2R Driver", "DAC1R", "DAC1R" }, + { "SPK2R Driver", "DAC2L", "DAC2L" }, + { "SPK2R Driver", "DAC2R", "DAC2R" }, + { "SPK2R Driver", NULL, "CLK_SYS" }, + + { "SPK1L", NULL, "SPK1L Driver" }, + { "SPK1R", NULL, "SPK1R Driver" }, + { "SPK2L", NULL, "SPK2L Driver" }, + { "SPK2R", NULL, "SPK2R Driver" } +}; + +static bool wm8995_readable(struct device *dev, unsigned int reg) +{ + switch (reg) { + case WM8995_SOFTWARE_RESET: + case WM8995_POWER_MANAGEMENT_1: + case WM8995_POWER_MANAGEMENT_2: + case WM8995_POWER_MANAGEMENT_3: + case WM8995_POWER_MANAGEMENT_4: + case WM8995_POWER_MANAGEMENT_5: + case WM8995_LEFT_LINE_INPUT_1_VOLUME: + case WM8995_RIGHT_LINE_INPUT_1_VOLUME: + case WM8995_LEFT_LINE_INPUT_CONTROL: + case WM8995_DAC1_LEFT_VOLUME: + case WM8995_DAC1_RIGHT_VOLUME: + case WM8995_DAC2_LEFT_VOLUME: + case WM8995_DAC2_RIGHT_VOLUME: + case WM8995_OUTPUT_VOLUME_ZC_1: + case WM8995_MICBIAS_1: + case WM8995_MICBIAS_2: + case WM8995_LDO_1: + case WM8995_LDO_2: + case WM8995_ACCESSORY_DETECT_MODE1: + case WM8995_ACCESSORY_DETECT_MODE2: + case WM8995_HEADPHONE_DETECT1: + case WM8995_HEADPHONE_DETECT2: + case WM8995_MIC_DETECT_1: + case WM8995_MIC_DETECT_2: + case WM8995_CHARGE_PUMP_1: + case WM8995_CLASS_W_1: + case WM8995_DC_SERVO_1: + case WM8995_DC_SERVO_2: + case WM8995_DC_SERVO_3: + case WM8995_DC_SERVO_5: + case WM8995_DC_SERVO_6: + case WM8995_DC_SERVO_7: + case WM8995_DC_SERVO_READBACK_0: + case WM8995_ANALOGUE_HP_1: + case WM8995_ANALOGUE_HP_2: + case WM8995_CHIP_REVISION: + case WM8995_CONTROL_INTERFACE_1: + case WM8995_CONTROL_INTERFACE_2: + case WM8995_WRITE_SEQUENCER_CTRL_1: + case WM8995_WRITE_SEQUENCER_CTRL_2: + case WM8995_AIF1_CLOCKING_1: + case WM8995_AIF1_CLOCKING_2: + case WM8995_AIF2_CLOCKING_1: + case WM8995_AIF2_CLOCKING_2: + case WM8995_CLOCKING_1: + case WM8995_CLOCKING_2: + case WM8995_AIF1_RATE: + case WM8995_AIF2_RATE: + case WM8995_RATE_STATUS: + case WM8995_FLL1_CONTROL_1: + case WM8995_FLL1_CONTROL_2: + case WM8995_FLL1_CONTROL_3: + case WM8995_FLL1_CONTROL_4: + case WM8995_FLL1_CONTROL_5: + case WM8995_FLL2_CONTROL_1: + case WM8995_FLL2_CONTROL_2: + case WM8995_FLL2_CONTROL_3: + case WM8995_FLL2_CONTROL_4: + case WM8995_FLL2_CONTROL_5: + case WM8995_AIF1_CONTROL_1: + case WM8995_AIF1_CONTROL_2: + case WM8995_AIF1_MASTER_SLAVE: + case WM8995_AIF1_BCLK: + case WM8995_AIF1ADC_LRCLK: + case WM8995_AIF1DAC_LRCLK: + case WM8995_AIF1DAC_DATA: + case WM8995_AIF1ADC_DATA: + case WM8995_AIF2_CONTROL_1: + case WM8995_AIF2_CONTROL_2: + case WM8995_AIF2_MASTER_SLAVE: + case WM8995_AIF2_BCLK: + case WM8995_AIF2ADC_LRCLK: + case WM8995_AIF2DAC_LRCLK: + case WM8995_AIF2DAC_DATA: + case WM8995_AIF2ADC_DATA: + case WM8995_AIF1_ADC1_LEFT_VOLUME: + case WM8995_AIF1_ADC1_RIGHT_VOLUME: + case WM8995_AIF1_DAC1_LEFT_VOLUME: + case WM8995_AIF1_DAC1_RIGHT_VOLUME: + case WM8995_AIF1_ADC2_LEFT_VOLUME: + case WM8995_AIF1_ADC2_RIGHT_VOLUME: + case WM8995_AIF1_DAC2_LEFT_VOLUME: + case WM8995_AIF1_DAC2_RIGHT_VOLUME: + case WM8995_AIF1_ADC1_FILTERS: + case WM8995_AIF1_ADC2_FILTERS: + case WM8995_AIF1_DAC1_FILTERS_1: + case WM8995_AIF1_DAC1_FILTERS_2: + case WM8995_AIF1_DAC2_FILTERS_1: + case WM8995_AIF1_DAC2_FILTERS_2: + case WM8995_AIF1_DRC1_1: + case WM8995_AIF1_DRC1_2: + case WM8995_AIF1_DRC1_3: + case WM8995_AIF1_DRC1_4: + case WM8995_AIF1_DRC1_5: + case WM8995_AIF1_DRC2_1: + case WM8995_AIF1_DRC2_2: + case WM8995_AIF1_DRC2_3: + case WM8995_AIF1_DRC2_4: + case WM8995_AIF1_DRC2_5: + case WM8995_AIF1_DAC1_EQ_GAINS_1: + case WM8995_AIF1_DAC1_EQ_GAINS_2: + case WM8995_AIF1_DAC1_EQ_BAND_1_A: + case WM8995_AIF1_DAC1_EQ_BAND_1_B: + case WM8995_AIF1_DAC1_EQ_BAND_1_PG: + case WM8995_AIF1_DAC1_EQ_BAND_2_A: + case WM8995_AIF1_DAC1_EQ_BAND_2_B: + case WM8995_AIF1_DAC1_EQ_BAND_2_C: + case WM8995_AIF1_DAC1_EQ_BAND_2_PG: + case WM8995_AIF1_DAC1_EQ_BAND_3_A: + case WM8995_AIF1_DAC1_EQ_BAND_3_B: + case WM8995_AIF1_DAC1_EQ_BAND_3_C: + case WM8995_AIF1_DAC1_EQ_BAND_3_PG: + case WM8995_AIF1_DAC1_EQ_BAND_4_A: + case WM8995_AIF1_DAC1_EQ_BAND_4_B: + case WM8995_AIF1_DAC1_EQ_BAND_4_C: + case WM8995_AIF1_DAC1_EQ_BAND_4_PG: + case WM8995_AIF1_DAC1_EQ_BAND_5_A: + case WM8995_AIF1_DAC1_EQ_BAND_5_B: + case WM8995_AIF1_DAC1_EQ_BAND_5_PG: + case WM8995_AIF1_DAC2_EQ_GAINS_1: + case WM8995_AIF1_DAC2_EQ_GAINS_2: + case WM8995_AIF1_DAC2_EQ_BAND_1_A: + case WM8995_AIF1_DAC2_EQ_BAND_1_B: + case WM8995_AIF1_DAC2_EQ_BAND_1_PG: + case WM8995_AIF1_DAC2_EQ_BAND_2_A: + case WM8995_AIF1_DAC2_EQ_BAND_2_B: + case WM8995_AIF1_DAC2_EQ_BAND_2_C: + case WM8995_AIF1_DAC2_EQ_BAND_2_PG: + case WM8995_AIF1_DAC2_EQ_BAND_3_A: + case WM8995_AIF1_DAC2_EQ_BAND_3_B: + case WM8995_AIF1_DAC2_EQ_BAND_3_C: + case WM8995_AIF1_DAC2_EQ_BAND_3_PG: + case WM8995_AIF1_DAC2_EQ_BAND_4_A: + case WM8995_AIF1_DAC2_EQ_BAND_4_B: + case WM8995_AIF1_DAC2_EQ_BAND_4_C: + case WM8995_AIF1_DAC2_EQ_BAND_4_PG: + case WM8995_AIF1_DAC2_EQ_BAND_5_A: + case WM8995_AIF1_DAC2_EQ_BAND_5_B: + case WM8995_AIF1_DAC2_EQ_BAND_5_PG: + case WM8995_AIF2_ADC_LEFT_VOLUME: + case WM8995_AIF2_ADC_RIGHT_VOLUME: + case WM8995_AIF2_DAC_LEFT_VOLUME: + case WM8995_AIF2_DAC_RIGHT_VOLUME: + case WM8995_AIF2_ADC_FILTERS: + case WM8995_AIF2_DAC_FILTERS_1: + case WM8995_AIF2_DAC_FILTERS_2: + case WM8995_AIF2_DRC_1: + case WM8995_AIF2_DRC_2: + case WM8995_AIF2_DRC_3: + case WM8995_AIF2_DRC_4: + case WM8995_AIF2_DRC_5: + case WM8995_AIF2_EQ_GAINS_1: + case WM8995_AIF2_EQ_GAINS_2: + case WM8995_AIF2_EQ_BAND_1_A: + case WM8995_AIF2_EQ_BAND_1_B: + case WM8995_AIF2_EQ_BAND_1_PG: + case WM8995_AIF2_EQ_BAND_2_A: + case WM8995_AIF2_EQ_BAND_2_B: + case WM8995_AIF2_EQ_BAND_2_C: + case WM8995_AIF2_EQ_BAND_2_PG: + case WM8995_AIF2_EQ_BAND_3_A: + case WM8995_AIF2_EQ_BAND_3_B: + case WM8995_AIF2_EQ_BAND_3_C: + case WM8995_AIF2_EQ_BAND_3_PG: + case WM8995_AIF2_EQ_BAND_4_A: + case WM8995_AIF2_EQ_BAND_4_B: + case WM8995_AIF2_EQ_BAND_4_C: + case WM8995_AIF2_EQ_BAND_4_PG: + case WM8995_AIF2_EQ_BAND_5_A: + case WM8995_AIF2_EQ_BAND_5_B: + case WM8995_AIF2_EQ_BAND_5_PG: + case WM8995_DAC1_MIXER_VOLUMES: + case WM8995_DAC1_LEFT_MIXER_ROUTING: + case WM8995_DAC1_RIGHT_MIXER_ROUTING: + case WM8995_DAC2_MIXER_VOLUMES: + case WM8995_DAC2_LEFT_MIXER_ROUTING: + case WM8995_DAC2_RIGHT_MIXER_ROUTING: + case WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING: + case WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING: + case WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING: + case WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING: + case WM8995_DAC_SOFTMUTE: + case WM8995_OVERSAMPLING: + case WM8995_SIDETONE: + case WM8995_GPIO_1: + case WM8995_GPIO_2: + case WM8995_GPIO_3: + case WM8995_GPIO_4: + case WM8995_GPIO_5: + case WM8995_GPIO_6: + case WM8995_GPIO_7: + case WM8995_GPIO_8: + case WM8995_GPIO_9: + case WM8995_GPIO_10: + case WM8995_GPIO_11: + case WM8995_GPIO_12: + case WM8995_GPIO_13: + case WM8995_GPIO_14: + case WM8995_PULL_CONTROL_1: + case WM8995_PULL_CONTROL_2: + case WM8995_INTERRUPT_STATUS_1: + case WM8995_INTERRUPT_STATUS_2: + case WM8995_INTERRUPT_RAW_STATUS_2: + case WM8995_INTERRUPT_STATUS_1_MASK: + case WM8995_INTERRUPT_STATUS_2_MASK: + case WM8995_INTERRUPT_CONTROL: + case WM8995_LEFT_PDM_SPEAKER_1: + case WM8995_RIGHT_PDM_SPEAKER_1: + case WM8995_PDM_SPEAKER_1_MUTE_SEQUENCE: + case WM8995_LEFT_PDM_SPEAKER_2: + case WM8995_RIGHT_PDM_SPEAKER_2: + case WM8995_PDM_SPEAKER_2_MUTE_SEQUENCE: + return true; + default: + return false; + } +} + +static bool wm8995_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case WM8995_SOFTWARE_RESET: + case WM8995_DC_SERVO_READBACK_0: + case WM8995_INTERRUPT_STATUS_1: + case WM8995_INTERRUPT_STATUS_2: + case WM8995_INTERRUPT_CONTROL: + case WM8995_ACCESSORY_DETECT_MODE1: + case WM8995_ACCESSORY_DETECT_MODE2: + case WM8995_HEADPHONE_DETECT1: + case WM8995_HEADPHONE_DETECT2: + case WM8995_RATE_STATUS: + return true; + default: + return false; + } +} + +static int wm8995_aif_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + int mute_reg; + + switch (dai->id) { + case 0: + mute_reg = WM8995_AIF1_DAC1_FILTERS_1; + break; + case 1: + mute_reg = WM8995_AIF2_DAC_FILTERS_1; + break; + default: + return -EINVAL; + } + + snd_soc_update_bits(codec, mute_reg, WM8995_AIF1DAC1_MUTE_MASK, + !!mute << WM8995_AIF1DAC1_MUTE_SHIFT); + return 0; +} + +static int wm8995_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_codec *codec; + int master; + int aif; + + codec = dai->codec; + + master = 0; + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + break; + case SND_SOC_DAIFMT_CBM_CFM: + master = WM8995_AIF1_MSTR; + break; + default: + dev_err(dai->dev, "Unknown master/slave configuration\n"); + return -EINVAL; + } + + aif = 0; + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_B: + aif |= WM8995_AIF1_LRCLK_INV; + case SND_SOC_DAIFMT_DSP_A: + aif |= (0x3 << WM8995_AIF1_FMT_SHIFT); + break; + case SND_SOC_DAIFMT_I2S: + aif |= (0x2 << WM8995_AIF1_FMT_SHIFT); + break; + case SND_SOC_DAIFMT_RIGHT_J: + break; + case SND_SOC_DAIFMT_LEFT_J: + aif |= (0x1 << WM8995_AIF1_FMT_SHIFT); + break; + default: + dev_err(dai->dev, "Unknown dai format\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + case SND_SOC_DAIFMT_DSP_B: + /* frame inversion not valid for DSP modes */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + aif |= WM8995_AIF1_BCLK_INV; + break; + default: + return -EINVAL; + } + break; + + case SND_SOC_DAIFMT_I2S: + case SND_SOC_DAIFMT_RIGHT_J: + case SND_SOC_DAIFMT_LEFT_J: + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + aif |= WM8995_AIF1_BCLK_INV | WM8995_AIF1_LRCLK_INV; + break; + case SND_SOC_DAIFMT_IB_NF: + aif |= WM8995_AIF1_BCLK_INV; + break; + case SND_SOC_DAIFMT_NB_IF: + aif |= WM8995_AIF1_LRCLK_INV; + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + snd_soc_update_bits(codec, WM8995_AIF1_CONTROL_1, + WM8995_AIF1_BCLK_INV_MASK | + WM8995_AIF1_LRCLK_INV_MASK | + WM8995_AIF1_FMT_MASK, aif); + snd_soc_update_bits(codec, WM8995_AIF1_MASTER_SLAVE, + WM8995_AIF1_MSTR_MASK, master); + return 0; +} + +static const int srs[] = { + 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, + 48000, 88200, 96000 +}; + +static const int fs_ratios[] = { + -1 /* reserved */, + 128, 192, 256, 384, 512, 768, 1024, 1408, 1536 +}; + +static const int bclk_divs[] = { + 10, 15, 20, 30, 40, 55, 60, 80, 110, 120, 160, 220, 240, 320, 440, 480 +}; + +static int wm8995_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec; + struct wm8995_priv *wm8995; + int aif1_reg; + int bclk_reg; + int lrclk_reg; + int rate_reg; + int bclk_rate; + int aif1; + int lrclk, bclk; + int i, rate_val, best, best_val, cur_val; + + codec = dai->codec; + wm8995 = snd_soc_codec_get_drvdata(codec); + + switch (dai->id) { + case 0: + aif1_reg = WM8995_AIF1_CONTROL_1; + bclk_reg = WM8995_AIF1_BCLK; + rate_reg = WM8995_AIF1_RATE; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* || + wm8995->lrclk_shared[0] */) { + lrclk_reg = WM8995_AIF1DAC_LRCLK; + } else { + lrclk_reg = WM8995_AIF1ADC_LRCLK; + dev_dbg(codec->dev, "AIF1 using split LRCLK\n"); + } + break; + case 1: + aif1_reg = WM8995_AIF2_CONTROL_1; + bclk_reg = WM8995_AIF2_BCLK; + rate_reg = WM8995_AIF2_RATE; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* || + wm8995->lrclk_shared[1] */) { + lrclk_reg = WM8995_AIF2DAC_LRCLK; + } else { + lrclk_reg = WM8995_AIF2ADC_LRCLK; + dev_dbg(codec->dev, "AIF2 using split LRCLK\n"); + } + break; + default: + return -EINVAL; + } + + bclk_rate = snd_soc_params_to_bclk(params); + if (bclk_rate < 0) + return bclk_rate; + + aif1 = 0; + switch (params_width(params)) { + case 16: + break; + case 20: + aif1 |= (0x1 << WM8995_AIF1_WL_SHIFT); + break; + case 24: + aif1 |= (0x2 << WM8995_AIF1_WL_SHIFT); + break; + case 32: + aif1 |= (0x3 << WM8995_AIF1_WL_SHIFT); + break; + default: + dev_err(dai->dev, "Unsupported word length %u\n", + params_width(params)); + return -EINVAL; + } + + /* try to find a suitable sample rate */ + for (i = 0; i < ARRAY_SIZE(srs); ++i) + if (srs[i] == params_rate(params)) + break; + if (i == ARRAY_SIZE(srs)) { + dev_err(dai->dev, "Sample rate %d is not supported\n", + params_rate(params)); + return -EINVAL; + } + rate_val = i << WM8995_AIF1_SR_SHIFT; + + dev_dbg(dai->dev, "Sample rate is %dHz\n", srs[i]); + dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n", + dai->id + 1, wm8995->aifclk[dai->id], bclk_rate); + + /* AIFCLK/fs ratio; look for a close match in either direction */ + best = 1; + best_val = abs((fs_ratios[1] * params_rate(params)) + - wm8995->aifclk[dai->id]); + for (i = 2; i < ARRAY_SIZE(fs_ratios); i++) { + cur_val = abs((fs_ratios[i] * params_rate(params)) + - wm8995->aifclk[dai->id]); + if (cur_val >= best_val) + continue; + best = i; + best_val = cur_val; + } + rate_val |= best; + + dev_dbg(dai->dev, "Selected AIF%dCLK/fs = %d\n", + dai->id + 1, fs_ratios[best]); + + /* + * We may not get quite the right frequency if using + * approximate clocks so look for the closest match that is + * higher than the target (we need to ensure that there enough + * BCLKs to clock out the samples). + */ + best = 0; + bclk = 0; + for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) { + cur_val = (wm8995->aifclk[dai->id] * 10 / bclk_divs[i]) - bclk_rate; + if (cur_val < 0) /* BCLK table is sorted */ + break; + best = i; + } + bclk |= best << WM8995_AIF1_BCLK_DIV_SHIFT; + + bclk_rate = wm8995->aifclk[dai->id] * 10 / bclk_divs[best]; + dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n", + bclk_divs[best], bclk_rate); + + lrclk = bclk_rate / params_rate(params); + dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n", + lrclk, bclk_rate / lrclk); + + snd_soc_update_bits(codec, aif1_reg, + WM8995_AIF1_WL_MASK, aif1); + snd_soc_update_bits(codec, bclk_reg, + WM8995_AIF1_BCLK_DIV_MASK, bclk); + snd_soc_update_bits(codec, lrclk_reg, + WM8995_AIF1DAC_RATE_MASK, lrclk); + snd_soc_update_bits(codec, rate_reg, + WM8995_AIF1_SR_MASK | + WM8995_AIF1CLK_RATE_MASK, rate_val); + return 0; +} + +static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate) +{ + struct snd_soc_codec *codec = codec_dai->codec; + int reg, val, mask; + + switch (codec_dai->id) { + case 0: + reg = WM8995_AIF1_MASTER_SLAVE; + mask = WM8995_AIF1_TRI; + break; + case 1: + reg = WM8995_AIF2_MASTER_SLAVE; + mask = WM8995_AIF2_TRI; + break; + case 2: + reg = WM8995_POWER_MANAGEMENT_5; + mask = WM8995_AIF3_TRI; + break; + default: + return -EINVAL; + } + + if (tristate) + val = mask; + else + val = 0; + + return snd_soc_update_bits(codec, reg, mask, val); +} + +/* The size in bits of the FLL divide multiplied by 10 + * to allow rounding later */ +#define FIXED_FLL_SIZE ((1 << 16) * 10) + +struct fll_div { + u16 outdiv; + u16 n; + u16 k; + u16 clk_ref_div; + u16 fll_fratio; +}; + +static int wm8995_get_fll_config(struct fll_div *fll, + int freq_in, int freq_out) +{ + u64 Kpart; + unsigned int K, Ndiv, Nmod; + + pr_debug("FLL input=%dHz, output=%dHz\n", freq_in, freq_out); + + /* Scale the input frequency down to <= 13.5MHz */ + fll->clk_ref_div = 0; + while (freq_in > 13500000) { + fll->clk_ref_div++; + freq_in /= 2; + + if (fll->clk_ref_div > 3) + return -EINVAL; + } + pr_debug("CLK_REF_DIV=%d, Fref=%dHz\n", fll->clk_ref_div, freq_in); + + /* Scale the output to give 90MHz<=Fvco<=100MHz */ + fll->outdiv = 3; + while (freq_out * (fll->outdiv + 1) < 90000000) { + fll->outdiv++; + if (fll->outdiv > 63) + return -EINVAL; + } + freq_out *= fll->outdiv + 1; + pr_debug("OUTDIV=%d, Fvco=%dHz\n", fll->outdiv, freq_out); + + if (freq_in > 1000000) { + fll->fll_fratio = 0; + } else if (freq_in > 256000) { + fll->fll_fratio = 1; + freq_in *= 2; + } else if (freq_in > 128000) { + fll->fll_fratio = 2; + freq_in *= 4; + } else if (freq_in > 64000) { + fll->fll_fratio = 3; + freq_in *= 8; + } else { + fll->fll_fratio = 4; + freq_in *= 16; + } + pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in); + + /* Now, calculate N.K */ + Ndiv = freq_out / freq_in; + + fll->n = Ndiv; + Nmod = freq_out % freq_in; + pr_debug("Nmod=%d\n", Nmod); + + /* Calculate fractional part - scale up so we can round. */ + Kpart = FIXED_FLL_SIZE * (long long)Nmod; + + do_div(Kpart, freq_in); + + K = Kpart & 0xFFFFFFFF; + + if ((K % 10) >= 5) + K += 5; + + /* Move down to proper range now rounding is done */ + fll->k = K / 10; + + pr_debug("N=%x K=%x\n", fll->n, fll->k); + + return 0; +} + +static int wm8995_set_fll(struct snd_soc_dai *dai, int id, + int src, unsigned int freq_in, + unsigned int freq_out) +{ + struct snd_soc_codec *codec; + struct wm8995_priv *wm8995; + int reg_offset, ret; + struct fll_div fll; + u16 reg, aif1, aif2; + + codec = dai->codec; + wm8995 = snd_soc_codec_get_drvdata(codec); + + aif1 = snd_soc_read(codec, WM8995_AIF1_CLOCKING_1) + & WM8995_AIF1CLK_ENA; + + aif2 = snd_soc_read(codec, WM8995_AIF2_CLOCKING_1) + & WM8995_AIF2CLK_ENA; + + switch (id) { + case WM8995_FLL1: + reg_offset = 0; + id = 0; + break; + case WM8995_FLL2: + reg_offset = 0x20; + id = 1; + break; + default: + return -EINVAL; + } + + switch (src) { + case 0: + /* Allow no source specification when stopping */ + if (freq_out) + return -EINVAL; + break; + case WM8995_FLL_SRC_MCLK1: + case WM8995_FLL_SRC_MCLK2: + case WM8995_FLL_SRC_LRCLK: + case WM8995_FLL_SRC_BCLK: + break; + default: + return -EINVAL; + } + + /* Are we changing anything? */ + if (wm8995->fll[id].src == src && + wm8995->fll[id].in == freq_in && wm8995->fll[id].out == freq_out) + return 0; + + /* If we're stopping the FLL redo the old config - no + * registers will actually be written but we avoid GCC flow + * analysis bugs spewing warnings. + */ + if (freq_out) + ret = wm8995_get_fll_config(&fll, freq_in, freq_out); + else + ret = wm8995_get_fll_config(&fll, wm8995->fll[id].in, + wm8995->fll[id].out); + if (ret < 0) + return ret; + + /* Gate the AIF clocks while we reclock */ + snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1, + WM8995_AIF1CLK_ENA_MASK, 0); + snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1, + WM8995_AIF2CLK_ENA_MASK, 0); + + /* We always need to disable the FLL while reconfiguring */ + snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset, + WM8995_FLL1_ENA_MASK, 0); + + reg = (fll.outdiv << WM8995_FLL1_OUTDIV_SHIFT) | + (fll.fll_fratio << WM8995_FLL1_FRATIO_SHIFT); + snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_2 + reg_offset, + WM8995_FLL1_OUTDIV_MASK | + WM8995_FLL1_FRATIO_MASK, reg); + + snd_soc_write(codec, WM8995_FLL1_CONTROL_3 + reg_offset, fll.k); + + snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_4 + reg_offset, + WM8995_FLL1_N_MASK, + fll.n << WM8995_FLL1_N_SHIFT); + + snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_5 + reg_offset, + WM8995_FLL1_REFCLK_DIV_MASK | + WM8995_FLL1_REFCLK_SRC_MASK, + (fll.clk_ref_div << WM8995_FLL1_REFCLK_DIV_SHIFT) | + (src - 1)); + + if (freq_out) + snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset, + WM8995_FLL1_ENA_MASK, WM8995_FLL1_ENA); + + wm8995->fll[id].in = freq_in; + wm8995->fll[id].out = freq_out; + wm8995->fll[id].src = src; + + /* Enable any gated AIF clocks */ + snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1, + WM8995_AIF1CLK_ENA_MASK, aif1); + snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1, + WM8995_AIF2CLK_ENA_MASK, aif2); + + configure_clock(codec); + + return 0; +} + +static int wm8995_set_dai_sysclk(struct snd_soc_dai *dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_codec *codec; + struct wm8995_priv *wm8995; + + codec = dai->codec; + wm8995 = snd_soc_codec_get_drvdata(codec); + + switch (dai->id) { + case 0: + case 1: + break; + default: + /* AIF3 shares clocking with AIF1/2 */ + return -EINVAL; + } + + switch (clk_id) { + case WM8995_SYSCLK_MCLK1: + wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1; + wm8995->mclk[0] = freq; + dev_dbg(dai->dev, "AIF%d using MCLK1 at %uHz\n", + dai->id + 1, freq); + break; + case WM8995_SYSCLK_MCLK2: + wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1; + wm8995->mclk[1] = freq; + dev_dbg(dai->dev, "AIF%d using MCLK2 at %uHz\n", + dai->id + 1, freq); + break; + case WM8995_SYSCLK_FLL1: + wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL1; + dev_dbg(dai->dev, "AIF%d using FLL1\n", dai->id + 1); + break; + case WM8995_SYSCLK_FLL2: + wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL2; + dev_dbg(dai->dev, "AIF%d using FLL2\n", dai->id + 1); + break; + case WM8995_SYSCLK_OPCLK: + default: + dev_err(dai->dev, "Unknown clock source %d\n", clk_id); + return -EINVAL; + } + + configure_clock(codec); + + return 0; +} + +static int wm8995_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct wm8995_priv *wm8995; + int ret; + + wm8995 = snd_soc_codec_get_drvdata(codec); + switch (level) { + case SND_SOC_BIAS_ON: + case SND_SOC_BIAS_PREPARE: + break; + case SND_SOC_BIAS_STANDBY: + if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { + ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies), + wm8995->supplies); + if (ret) + return ret; + + ret = regcache_sync(wm8995->regmap); + if (ret) { + dev_err(codec->dev, + "Failed to sync cache: %d\n", ret); + return ret; + } + + snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, + WM8995_BG_ENA_MASK, WM8995_BG_ENA); + } + break; + case SND_SOC_BIAS_OFF: + snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1, + WM8995_BG_ENA_MASK, 0); + regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), + wm8995->supplies); + break; + } + + codec->dapm.bias_level = level; + return 0; +} + +static int wm8995_remove(struct snd_soc_codec *codec) +{ + struct wm8995_priv *wm8995; + int i; + + wm8995 = snd_soc_codec_get_drvdata(codec); + + for (i = 0; i < ARRAY_SIZE(wm8995->supplies); ++i) + regulator_unregister_notifier(wm8995->supplies[i].consumer, + &wm8995->disable_nb[i]); + + regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies); + return 0; +} + +static int wm8995_probe(struct snd_soc_codec *codec) +{ + struct wm8995_priv *wm8995; + int i; + int ret; + + wm8995 = snd_soc_codec_get_drvdata(codec); + wm8995->codec = codec; + + for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) + wm8995->supplies[i].supply = wm8995_supply_names[i]; + + ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8995->supplies), + wm8995->supplies); + if (ret) { + dev_err(codec->dev, "Failed to request supplies: %d\n", ret); + return ret; + } + + wm8995->disable_nb[0].notifier_call = wm8995_regulator_event_0; + wm8995->disable_nb[1].notifier_call = wm8995_regulator_event_1; + wm8995->disable_nb[2].notifier_call = wm8995_regulator_event_2; + wm8995->disable_nb[3].notifier_call = wm8995_regulator_event_3; + wm8995->disable_nb[4].notifier_call = wm8995_regulator_event_4; + wm8995->disable_nb[5].notifier_call = wm8995_regulator_event_5; + wm8995->disable_nb[6].notifier_call = wm8995_regulator_event_6; + wm8995->disable_nb[7].notifier_call = wm8995_regulator_event_7; + + /* This should really be moved into the regulator core */ + for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) { + ret = regulator_register_notifier(wm8995->supplies[i].consumer, + &wm8995->disable_nb[i]); + if (ret) { + dev_err(codec->dev, + "Failed to register regulator notifier: %d\n", + ret); + } + } + + ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies), + wm8995->supplies); + if (ret) { + dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); + goto err_reg_get; + } + + ret = snd_soc_read(codec, WM8995_SOFTWARE_RESET); + if (ret < 0) { + dev_err(codec->dev, "Failed to read device ID: %d\n", ret); + goto err_reg_enable; + } + + if (ret != 0x8995) { + dev_err(codec->dev, "Invalid device ID: %#x\n", ret); + ret = -EINVAL; + goto err_reg_enable; + } + + ret = snd_soc_write(codec, WM8995_SOFTWARE_RESET, 0); + if (ret < 0) { + dev_err(codec->dev, "Failed to issue reset: %d\n", ret); + goto err_reg_enable; + } + + /* Latch volume updates (right only; we always do left then right). */ + snd_soc_update_bits(codec, WM8995_AIF1_DAC1_RIGHT_VOLUME, + WM8995_AIF1DAC1_VU_MASK, WM8995_AIF1DAC1_VU); + snd_soc_update_bits(codec, WM8995_AIF1_DAC2_RIGHT_VOLUME, + WM8995_AIF1DAC2_VU_MASK, WM8995_AIF1DAC2_VU); + snd_soc_update_bits(codec, WM8995_AIF2_DAC_RIGHT_VOLUME, + WM8995_AIF2DAC_VU_MASK, WM8995_AIF2DAC_VU); + snd_soc_update_bits(codec, WM8995_AIF1_ADC1_RIGHT_VOLUME, + WM8995_AIF1ADC1_VU_MASK, WM8995_AIF1ADC1_VU); + snd_soc_update_bits(codec, WM8995_AIF1_ADC2_RIGHT_VOLUME, + WM8995_AIF1ADC2_VU_MASK, WM8995_AIF1ADC2_VU); + snd_soc_update_bits(codec, WM8995_AIF2_ADC_RIGHT_VOLUME, + WM8995_AIF2ADC_VU_MASK, WM8995_AIF1ADC2_VU); + snd_soc_update_bits(codec, WM8995_DAC1_RIGHT_VOLUME, + WM8995_DAC1_VU_MASK, WM8995_DAC1_VU); + snd_soc_update_bits(codec, WM8995_DAC2_RIGHT_VOLUME, + WM8995_DAC2_VU_MASK, WM8995_DAC2_VU); + snd_soc_update_bits(codec, WM8995_RIGHT_LINE_INPUT_1_VOLUME, + WM8995_IN1_VU_MASK, WM8995_IN1_VU); + + wm8995_update_class_w(codec); + + return 0; + +err_reg_enable: + regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), wm8995->supplies); +err_reg_get: + regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies); + return ret; +} + +#define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +static const struct snd_soc_dai_ops wm8995_aif1_dai_ops = { + .set_sysclk = wm8995_set_dai_sysclk, + .set_fmt = wm8995_set_dai_fmt, + .hw_params = wm8995_hw_params, + .digital_mute = wm8995_aif_mute, + .set_pll = wm8995_set_fll, + .set_tristate = wm8995_set_tristate, +}; + +static const struct snd_soc_dai_ops wm8995_aif2_dai_ops = { + .set_sysclk = wm8995_set_dai_sysclk, + .set_fmt = wm8995_set_dai_fmt, + .hw_params = wm8995_hw_params, + .digital_mute = wm8995_aif_mute, + .set_pll = wm8995_set_fll, + .set_tristate = wm8995_set_tristate, +}; + +static const struct snd_soc_dai_ops wm8995_aif3_dai_ops = { + .set_tristate = wm8995_set_tristate, +}; + +static struct snd_soc_dai_driver wm8995_dai[] = { + { + .name = "wm8995-aif1", + .playback = { + .stream_name = "AIF1 Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = WM8995_FORMATS + }, + .capture = { + .stream_name = "AIF1 Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = WM8995_FORMATS + }, + .ops = &wm8995_aif1_dai_ops + }, + { + .name = "wm8995-aif2", + .playback = { + .stream_name = "AIF2 Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = WM8995_FORMATS + }, + .capture = { + .stream_name = "AIF2 Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = WM8995_FORMATS + }, + .ops = &wm8995_aif2_dai_ops + }, + { + .name = "wm8995-aif3", + .playback = { + .stream_name = "AIF3 Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = WM8995_FORMATS + }, + .capture = { + .stream_name = "AIF3 Capture", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = WM8995_FORMATS + }, + .ops = &wm8995_aif3_dai_ops + } +}; + +static const struct snd_soc_codec_driver soc_codec_dev_wm8995 = { + .probe = wm8995_probe, + .remove = wm8995_remove, + .set_bias_level = wm8995_set_bias_level, + .idle_bias_off = true, + + .controls = wm8995_snd_controls, + .num_controls = ARRAY_SIZE(wm8995_snd_controls), + .dapm_widgets = wm8995_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wm8995_dapm_widgets), + .dapm_routes = wm8995_intercon, + .num_dapm_routes = ARRAY_SIZE(wm8995_intercon), +}; + +static const struct regmap_config wm8995_regmap = { + .reg_bits = 16, + .val_bits = 16, + + .max_register = WM8995_MAX_REGISTER, + .reg_defaults = wm8995_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8995_reg_defaults), + .volatile_reg = wm8995_volatile, + .readable_reg = wm8995_readable, + .cache_type = REGCACHE_RBTREE, +}; + +#if defined(CONFIG_SPI_MASTER) +static int wm8995_spi_probe(struct spi_device *spi) +{ + struct wm8995_priv *wm8995; + int ret; + + wm8995 = devm_kzalloc(&spi->dev, sizeof(*wm8995), GFP_KERNEL); + if (!wm8995) + return -ENOMEM; + + spi_set_drvdata(spi, wm8995); + + wm8995->regmap = devm_regmap_init_spi(spi, &wm8995_regmap); + if (IS_ERR(wm8995->regmap)) { + ret = PTR_ERR(wm8995->regmap); + dev_err(&spi->dev, "Failed to register regmap: %d\n", ret); + return ret; + } + + ret = snd_soc_register_codec(&spi->dev, + &soc_codec_dev_wm8995, wm8995_dai, + ARRAY_SIZE(wm8995_dai)); + return ret; +} + +static int wm8995_spi_remove(struct spi_device *spi) +{ + snd_soc_unregister_codec(&spi->dev); + return 0; +} + +static struct spi_driver wm8995_spi_driver = { + .driver = { + .name = "wm8995", + .owner = THIS_MODULE, + }, + .probe = wm8995_spi_probe, + .remove = wm8995_spi_remove +}; +#endif + +#if IS_ENABLED(CONFIG_I2C) +static int wm8995_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct wm8995_priv *wm8995; + int ret; + + wm8995 = devm_kzalloc(&i2c->dev, sizeof(*wm8995), GFP_KERNEL); + if (!wm8995) + return -ENOMEM; + + i2c_set_clientdata(i2c, wm8995); + + wm8995->regmap = devm_regmap_init_i2c(i2c, &wm8995_regmap); + if (IS_ERR(wm8995->regmap)) { + ret = PTR_ERR(wm8995->regmap); + dev_err(&i2c->dev, "Failed to register regmap: %d\n", ret); + return ret; + } + + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8995, wm8995_dai, + ARRAY_SIZE(wm8995_dai)); + if (ret < 0) + dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); + + return ret; +} + +static int wm8995_i2c_remove(struct i2c_client *client) +{ + snd_soc_unregister_codec(&client->dev); + return 0; +} + +static const struct i2c_device_id wm8995_i2c_id[] = { + {"wm8995", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, wm8995_i2c_id); + +static struct i2c_driver wm8995_i2c_driver = { + .driver = { + .name = "wm8995", + .owner = THIS_MODULE, + }, + .probe = wm8995_i2c_probe, + .remove = wm8995_i2c_remove, + .id_table = wm8995_i2c_id +}; +#endif + +static int __init wm8995_modinit(void) +{ + int ret = 0; + +#if IS_ENABLED(CONFIG_I2C) + ret = i2c_add_driver(&wm8995_i2c_driver); + if (ret) { + printk(KERN_ERR "Failed to register wm8995 I2C driver: %d\n", + ret); + } +#endif +#if defined(CONFIG_SPI_MASTER) + ret = spi_register_driver(&wm8995_spi_driver); + if (ret) { + printk(KERN_ERR "Failed to register wm8995 SPI driver: %d\n", + ret); + } +#endif + return ret; +} + +module_init(wm8995_modinit); + +static void __exit wm8995_exit(void) +{ +#if IS_ENABLED(CONFIG_I2C) + i2c_del_driver(&wm8995_i2c_driver); +#endif +#if defined(CONFIG_SPI_MASTER) + spi_unregister_driver(&wm8995_spi_driver); +#endif +} + +module_exit(wm8995_exit); + +MODULE_DESCRIPTION("ASoC WM8995 driver"); +MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>"); +MODULE_LICENSE("GPL"); |